Marginal Energy Limited has taken a significant step in its growth journey with its entry into Sierra Leone’s offshore basin marking a major milestone in the company’s ambition to become a leading force in Africa’s energy sector.

This expansion follows the signing of a Production Sharing Agreement (PSA) with the Petroleum Directorate of Sierra Leone (PDSL), formalized on April 23, 2026, during the Invest in African Energy Forum in Paris.

Unlocking a Promising Offshore Basin

Under the agreement, Marginal Energy has been granted exclusive rights to explore, develop, and produce hydrocarbons across five offshore blocks—G-Blocks 145, 146, 147, 160, and 161—spanning approximately 6,800 km².

The deal establishes a full-cycle upstream framework covering exploration through to potential production, supported by a structured exploration period of up to seven years. As part of its commitment, Marginal Energy will execute a robust work program that includes 3D seismic acquisition, advanced geoscience studies, and drilling activities, with an investment exceeding $225 million.

A Partnership Built on Shared Vision

The agreement reflects strong alignment between Marginal Energy and the Government of Sierra Leone in unlocking the country’s hydrocarbon potential responsibly.

President Julius Maada Bio emphasized the importance of leveraging natural resources for sustainable economic transformation, while PDSL Director General Foday Mansaray described the deal as a key step in advancing the nation’s offshore energy ambitions.

Beyond exploration, the partnership prioritizes:

• Local content development and job creation
• Technology transfer and capacity building
• Strong environmental and social governance (ESG) standards

These elements reinforce a shared commitment to ensuring long-term economic value and sustainable growth.

Strategic Growth for Marginal Energy

For Marginal Energy, the move represents a strategic entry into a largely underexplored basin with significant upside potential. Building on over two decades of experience in the Niger Delta, the company is well-positioned to deploy its technical expertise and operational capabilities in this new frontier.

The Paris signing also underscores Marginal Energy’s growing presence on the global stage, aligning with broader efforts to position Africa as a key player in the evolving energy landscape.